Scourge of the lightning general

When you land an attack on a creature you can roll two of the weapons die (great axe would be 2d12 instead of 1) you can do this once per short rest this will also scale with level#

Also your breath attack also counts as a bonus action and all effected by the breath will roll a constitution check with a dc of 13 upon a failure they are stunned

Your dex and char go up by 1 to a cap of 20